I can't find the original article I posted but the above photos show the main points. I am only posting this as this is an extremely easy fix and cheap versus a prefab piece and associated costs. Of course, I may have misinterpreted your intent. If so, sorry.

The Flex PCB works for me. That is very similar to what I was thinking, but have an open conversation with a protyping shop I work with discussing how to make new ones in small batches. I don't think they can make for the price we're willing to pay, so Diego's approach may win the day.